Curtainless sand blast nozzle control



y W. A. F'ULKERSON ET AL 1,857,188

CURTAINLESS SAND BLAST NOZZLE CONTROL Filed May 28, 1950 WIA ME? A. FULKEE'SOM y CLARENCE .r. BALM-- ZEQW Patented May 10, 1932 UNITED STATES PATENT OFFICE WILMER A. FULKERSON AND CLARENCEI. BAIN, OF BROOKFIELD, MISSOURI CURTAINLESS SAND BLAST NozzLE CONTROL Application filed May 28, 1930. Seria1 No.'4 56,318.

This invention relates to improvements in sand blast nozzle control. d

It has for its object to provide means for adjustably mounting a sand blast nozzle in 5 such a way that it maybe alwaysheld at right angles to the work and moved instantaneously either longitudinally or vertically, and allover the face of the Work.

It is also an object of this invention to provide a counterbalance means-for holding the sand blast nozzle in certain adjusted positions. i i

provide in connection with a sand blast room, having an opening therein, means across the opening to protect the eyes of the operator from the backward flying sand and to .prevent the backward flying of the sand beyond the confines of the room.

tion to provide in connection with a sand blast room, means for pivotally supporting a pair of guides in which are located sliding tubes, one of which is on the, outside for operating purposes, and the other of which extends into the room and has located thereon at suitable points a sand blast nozzle and light means. In connection with the interior sliding tube there is provided'mea-ns for holding the tubes in adjusted position. There is also provided in connection with this inner tube, means for supplying electriccurr'entto the lighting means located thereon.

These and other advantages will appear the drawings.

Referring to the drawings:

Figure 1 is a front elevation of a sand v present instance is shown within the room blast room showing the opening therein closed by a wire screen. This figure also shows the outside sliding tubein one position in full lines, and in two other positions in dotted lines. i

Figure 2 is a vertical section'taken on the line 22 of Figure 1'. p I

The numeral 1 is used to designate the sand room, which may be of any suitable and convenient shape and size. In the present in:

stance this room is rectangular in shape, having four side walls and a top. In the front It is a further'object of this invention to;

It is particularly the object ofthis inven-' from the description taken in connection with wall is an opening across which there is stretched a wire screen 2. In the top there is a slot, the purpose of which will be later described. I r

Located on top of theroom between the slot and the front wall is ashaft or axle 3 supported adjacent each end by a bearing 4. On each endof this shaft or axle is a steel flange 5, solidly attached thereto. To each ofthese flanges is also solidly attached a tubular steelguidemembe r 6. These guide members and the shaft freely oscillate inthe bearings 4. In each end of each guide are roller bearings tudinal adjustment of sliding tubes 8 and 9, located inthese guides. While'both of these slide members are shown as tubular, at least the outer one 8 need not be tubular. The upper ends of these slide members are united by a cross member 10. The memberlO is united to the slide member 8 by means of an elbow joint 11, which is united tothe slide member 9 by means of a T joint 12.

On the lowerend of the slide member 8 is a handle 13 which is for. the purpose of raising". the slide members. and oscillating them'on the bearings 1." On the lower'end of the inner slide memher'9 is a nozzle clamp 7 for the purpose of permitting ready longi-,

14 for the purpose of clamping in position i cord 17 which passes upward and over two pulleys 18 located on thetop of the room. This cord passes from the second pulley down through a hole within the top of'theroom and supports within the'room a counterweight 19. While this counterweight in the this cord therethrough;

On the slide tube 9, just above the nozzle bracket, is a light bulb which has associated therewith a reflector 21. For the purpose of supplying electric current to this bulb there extends through the upper end ofthis slide tube wires 22. Extending from the nozzle is a sandhose 23. This hose ,passes outside of the sandrooni at some particular and suitable point. In the present instance it is shown as passing out of the room through the top- Whileitds not showmtherroomihas suitable openings therein for the entrance of the work. In the present instance thereis-shown in the room a truck Qfl having thereon the work 25. After the work hasbeen located within the ;room the opening through which .itflis admitted maybeclosed.

The purpose ,of the screen 2 ,is to permit the operator to inspect'the work andsee .how it is being carried on, and \to properly ,man'ipplate the parts'lwithout subjecting his eyes 7 .to the damaging influence of thebackward .flyingsand. The wire :netting-is sufficient to prevent the sand flying back outside of. the

'; room, and is sufficiently large to permit an inspeetion and view ofsthe work asiitis going #011. 7

' The nozzle is manipulated by-means .of ,the :handle lb By raising the handlelbothofthe slide tubes-more upward-andoarry with them u the nozzle. Aitthe same timelthesetubesanay ,be caused ;to ioscillateor swing about the pivots 4 so that the nozzle may be adjusted to vany ,point ,of the work. In drderto facilitate I the inorementugp and downoi v-the slide ,tubes .thecounterweight 1 9 is provided. Thiscounterweight jisofsubstantia lly the same weight as the moving parts of the sandblasting structure. In dot-ted line ,in Figure2 -thesand blast nozzle and its operating parts,aregshown in -,r aised position, with .the nozzle above the workasshown in this figure. lheuiozzlemay be adjusted .to any desired position up and down or transverse the room. The purpose of the light within ,the room is toienablethe .qperator to see (exactly how ,theblast-ing is operating and what ezflfect the .sand blast is.

having upon the .work. I

, ,QWe desire to comprehend within our invention such modifications as may be. clearly embraced within our claims and the scope of .our invention. r,

' Having thus fully described our invention, w hatweclairn is new and desire to se cure ,by Letters Patent, is:

1. In a sand blast control, an oscillatory shaft, ,a guideon each ,end :of said shaft, a slide iineach guide, means connecting one end :of one slide to one end of the other slide, ,a handle on the other end of one slide, and a sand blast nozzle .on the other end of the other slide.

2. In ,asand blast control, a l-oscillatory shaft, a guide on each end of said shaft,- a slide in each guide, meanscolmeotlngoneend of one slide to one end of the other slide, a handle on the other end of one slide, and a sand blast nozzle and a light means on the other end of the other slide.

3. In a sand blast control, an oscillatory 7 shaft, a guide on each end of said shaft, a substantially vertically movable vslide in each ;guide, means connecting the upperends of the slides, a handle on the lower end of one slide to raise and lower and oscillate the slides, and a sand l'b'las't nozzle-and a light means on the lower end of the other slide.

4. In a sand blast control, an oscillatory V shaft, a guideon each end of said shaft, a substantially vertically movable slide in each guide, means connecting the upper ends of the slides, means to oscillate then-slides and movethem vertically, a sand ,hlast nozzle 1 and light means on one of said slides, and ,a

counterbalance means connected .to one Tof 35 said slides. 1 I

5. In a sand blast: control, ,an oscillatory shaft, a guideon said shaft, atubular slide said, guide, means .to oscillatev said slide and move git up and down in the ,guide, a sand blast nozzle and alightmeans atone endiof the slide, and an electric conductor meansextending from the light means through the slide.

shaft, a guide on said shaft, a tubularslide in said nide, means to oscillate said slide and move it up anddown in .the guide, asand blast nozzle and a light means on said slide,

(an electric conductor extending from the 10 .lightzmea ns through the slide, and means to counterbalance the slide. 7 7 i g 7. In a sand --blas.t control, an oscillatory ,guide, a--tubular slide inv said guide, means to Eoscillate said slide and move it the guide, 5

.a sand blast-nozzle and a light means' on said slide, an electric conductor extending from the light means through the slide, and a sand hose connected to said nozzle.

8. In a sand-blast control, asand room hav-; .110

ing a slot in the top thereof and an opening in one side, an oscillatory guide on .the topvof said room extending through said slot, a tubular slide in said guide, means to "oscillate the slide-and move it inthe guide, a;sand-'" room, a guide on each end of said shaft, a

slide in each guide, one without the 'room' and-the other extending through thegslot into the room, means to oscillate the slides and move them ;in the guides, a sand nozzle on the slide within the room adj aoent the .open- 130 6. Ina sand blast controhan -O$QI1l 3:tQ I'y;;95

ing, and a Wire screen across the opening to prevent sand flying back.

10. In a sand blast control, a sand room having a slot in the top thereof and an opening in one side, a shaft pivotally supported on said room, a guide on each end of said shaft, a slide in each guide, one without the room and the other extending through the slot into the room, means on the outer slide to oscillate the slides and move them in the guides, a sand nozzle on the slide within the room adjacent the opening, and a wire screen across the opening to prevent sand flying back.

11. In a sand blast control, a sand room having a slot in the top thereof and an opening in one side, a shaft pivotally supported on said room, a guide on each end of said shaft, a slide in each guide, one without the room and the other a tubular one extending through the slot into the room, means on the outer slide to oscillate the slides and move them in the guides, a sand nozzle and a light means on the tubular slide adjacent the opening, and a wire screen across the opening to prevent sand flying back.

12. In a sand blast control, a sand room having a slot in the top thereof and an opening in one side, a shaft pivotally supported on said room, a guide on each end of the shaft, a slide in each guide, one without the room and the other a tubular one extending through the slot into the room, means to connect the upper ends of said slides. ahandle on the outer slide by which the slides may be moved through the guides and oscillated, a

sand nozzle and light means on the lower end of the tubular slide adjacent the opening, electric conductors extending through the tubular slide to the light means, a sand tube connected to the sand nozzle, and a wire screen across the opening.

13. In a sand blast control, a sand room having a slot in the top thereof and an opening in one side, a shaft pivotally supported on said room, a guide on each end of the shaft, a slide in each guide, one without the room and the other a tubular one extending through the slot into the room, means to connect the upper ends of said slides, a handle on the outer slide by which the slides may be moved through the guides and oscillated, a sand nozzle and light means on the lower end of the tubular slide adjacent the opening, electric conductors extending through the tubular slide to the light means, a sand tube connected to the sand nozzle, a wire screen across the opening, and a counterweight connect-ed to one of the slides.

In testimony whereof We aflix our signatures.

WILMER A. FULKERSON. CLARENCE I. BAIN. 

